Sleeve-valve engine-cylinder head



NOV. 4, 1930. vE 7 1,780,763

SLEEVE VALVE ENGINE CYLINDER HEAD Filed July 25, 1927 3 INVENTOR.

A TTORNE Y.

Patented Nov. 4, 1930 H I stars Pam ARCHIE MACPHAIL NIVEN, OF DETROIT,

MICHIGAN, ASSIGNOR 'TO' oon rmnn'rar.

MOTORS CORPORATION, 033 DETROIT, MICHIGAN, A CORPORATION OF VIRGINIA SLEEVE-VALVE ENGIJEIE-CZLINDEB HEAD Application filed July 25, 1927. Serial No. 208,189.

This invention relates to internal combustion' engines and refers more particularly to the sleeve valve type of engine. In this type of engine the upper extremity of the sleeve ordinarily works in a pocket formedbetween the cylinder head and cylinder. While the cylinder head is ordinarily jacketed for cooling water. the amount of available jacketing is limited due to spark plug location and general arrangement of parts. As a result the sleeve jacket tends to become overheated resulting in formation of steam pockets, carbon accumulation and general ineiiicient opera der head and sleeve pocket. It has been prov posed to provide a cylinder head casting so cored with passages as to guide the cooling water in a circulatory path through the cylinder head. My invention provides a substantially similar circulatory path of increased efliciency for the cooling water and eliminates the necessity for coring the cylinder head'to' form the cooling water guiding passages. I provide a member preferably in the-nature of a sheet metal stamping attachable to the cylinder head for guiding the cooling water in the desired circulatory path. Thus my invention tends toward simplicity of manufacture with consequent lessening of expense and relatively light Weight as compared with a cast cylinder head. With these and other objects in view my invention resides in the novel combination and arrangement of parts more particularly hereinafter described and claimed.

Referring to the drawings in which like reference characters represent corresponding P Fig. 1 is a sectional elevation view through a typical cylinder head showing my invention,

Fig. 2 is a bottom plan view of the cylinder head assembly, and

Fig. 8 is a perspective v'iew showing my invent on associatedw tli thecyhnder head.

In the draw ngs reference character A rep- "resents the engine having one or more cylinders '10 with associated piston 11 and'sleeve valve 12, the latter for illi'istratio'n being shown as the Burt-Mecollum single sleeve valve type in which the sleeve is moved in a combined reciprocatingfand oscillating path with respect to the sleeve axis inmoving. the sleeve ports to function with the u'sual cylinder ports. e w

The cylinder is closed at thetop] by a cylinder head B which may be formed'with walls 13 and 1 1. The wall 13 together with the associated cylinder forms a valve pocket 15 ac- 'commodating the' movement of the upper portion of the sleeve valve 12. The Wall 14:

is spaced from wall13 to form the cylinder head cooling water j acket'16 and also defines the combustion chamber 17 The wall 1 1 may be extended to provide a barrel 18 with the usual spark plug opening 19. The cylinder head B may be secured to the cylinder by studs 20 passing through openings 21, at

the corners of the cylinder flange 22, for engagement with the cylinder. a

The cooling water from cylinder jacket 23is open-for communication with the cylinder h ad jacket. 16 through opening 24: pref erably along one side only of the cylinder head. For guiding the water from opening '24 I have provided a cylinder head Water 7 jacket cover 0, preferably formedof a sheet metal stamping. The cover C may be formed with side wall 25 spaced from the" side of the cylinder head adjacent the opening 24,

side walls 26, and top wall 27. The water in moving across the cylinder head is caused to circulate downwardly into the jacket 16 by reason of the cylinder head baffles 28 which divide'the jacket 16 longitudinally. Cooperating with bafiles 28 are'side cover bafiies 29 preferably formed integrally with the main body of the cover 0. The top wall 27 may be formed with a portion 30 engageable with the barrel 18 and for convenii'ent location may be secured in position by a barrel flange 31 which is ordinarily'provided for supporting -thewate'r sealing ring is 32 for the cylinder head top cover 33. A nut 34: threadedly engages barrel 18 for clamping the cover 33, sealing ring '32, and jacket cover. C in position.

If desired the particular illustrated em-,

bodiment of; my inventionmight be modified Without departing from the spirit of :the invention. F orv example if desired the side cover baffles 29 might be extended down- ,vvardly-to replace thefcylinder baffles 28 althoughlittle difliculty is experienced in casting the balfles 28. Other modifications will readily suggest themselves.

- With my invention, the jacket cover 0 is constructed separately from the'cylinder 'head afi'ording a relatively great inlet area for the cooling water as at 34 a The cooling water becirculated throughout the entire system by the usual ater pump, thewater being returned to the usual radiator'by a header 35 on the. outlet side of baffles 28 and 29.. The general direction of water circulation through i the cylin-derjhead is'illustrated by the arrows in Figjl;

use with various types of sleeve/valve engines such as l eve yp esr Whatl claim as my invention is: V

1. An} internal, combustion engine of the sleeve valve type 1 comprising in coinbinatlon, a wa ter jacketed cylinder, a piston oper:

able therein, a water jacketed cylinder head forming a sleeve pocketwiththecylinder, a icylinde'r, head water j'acket cover cooperating v Withthecylinder head waterqjacket to pro-' vide a conduit for the cooling water, a cylinderhead top coverforming aiwater header, and-means engaging the cylinder. head for clamping the top cover in position and for maintaining the jacket cover iirproper position,

2. An int ernal combustion engine of the sleeve valve type comprising in combination,

ajwater jacketed cylinder,a' piston operable therein, a. 'Waterjacketed' cylinder head forming a sleeye-pocket. withithe cylinder,

and asheet metal cylinder head water jacket- ;co ven formed with parallel: side and parallel portions cooperating with the cylinder headto form afcooling water conduit for the cylinder head,

- "3, An internal combustion engine of the jsleevevalve type connprls ng n combinati on,

awater jacketed cylindena piston operable therein a water jacketed.- cylinder head My invention is equally well adapted'ifor j the :7 multiple sleeve or single 4. A sleeve valve engine comprising in' combination, a water jacketed cylinder, a a water jacketed cylinder head having asubstantially rectangular peripheral flange,

means clamping said flange on the cylinder end, a top cover positionedonsaid cylinder end in spaced relation Withthe cylinder head flange, and acylinder head jacket cover cooperating with the cylinder head to form a water conduit therefon'saidjacket covenihaving a side wall positioned on the cyllindcnend,

in spaced relation with a side of said rectang'ular peripheral cylinder head flange providingan inlet from the cylinder jacket to the said "cylinder-head water conduit said inlet extending substantiallythe. length of the said adjacent side of the cylinder-head flange.

5. Asleevevalveengine comprising inco111- binatio'n, a I j acketed 1 c linder, :1 acketed' cylinderhead" closing j the cylinder, a cylinder head cover, and an element separate from the head and cover enclosed by'the .c'over constructed and arrangedto conducta cooling medium from the cylinder j acketto' the cyline der head jacket, said element provided with a. downwardly flanged portion spaced to, one side of the cylinder head,and extending substantially the length of the cylinder head to provide an inlet for the cooling medium from the cylinder jacket. i j I a v 1 Y6. In a 'sleevefvalve engine, a jacketed 1 cylinder, a cylinder head vhaving a acketdeseat-ed'on the cylinder and formed'withgawm ter jacket dependingin the cylinder, and ;a I water deflecting baffle 1 over-said depending water acket, extending upwardly .,anrl laterally to a pos tion overlying the cylinder head "In witne s whereof, I hereunto-subscribe my name this 21iSt-l12lY- OfJl1l y, A; 1)., 1927.

- R HIE MAGPHAIL "Niven: I

forming a sleeve pocket; with the cylinder, and

a sheet-metal; cylinder head water jacket 003L 1 formed withparallel side. and. parallel li YaW WAQZl lEQ( 37 6 3 cylinder hea ,d ,hav ng-, a, flanged" portion endportions cooperatingiwith the cylinder headto form a cooling Water. conduit;for the y ind r. eedfsaid i ack t o er also provid dwithl altop iwall: engageablewitha. poreaEl a alinsiei heals 

